docker: docker-compose remove ports in dut configuration

Ports is a redundant configuration running in network_mode: host
then docker-compose pick up host port from the Dockerfile.
As the CI environment has bumped docker-compose this error is
now causing the CI check to fail.

Signed-off-by: Kasper Revsbech <[email protected]>

Author: krevsbech

dockerfiles/staging/docker-compose.yml

@@ -48,5 +48,3 @@ services:
     build:
       context: "./dut"
     network_mode: "host"
-    ports:
-      - 2222:2222